Integrating equation (2), (6.0.) © 2 Sty (tyr? = 4,-0.2) and . (6.b.) © Siyty1.244.“02a0.2) . (7) t, @ tine after detonation t, @ later tire after detonation. Coc = Sat . 7 ‘wherer C® © total nusber of disintegrations from tine "a" te “b* By the use of equations 3.a. or 3.b. and 6.b. one may compute an estinsted dose at the surface of an inaginary sphere, Of course, the problem is the deterxination of "t* and ~") 1.0., how long after detonation will a radioactive particle appear in the lungs and how long will the particle remain in place. The first tine (t) is puch easier to ectixate than the later (t,). (See text page 53) Po ae 2? el